Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://infrive.ru/uplcv?utm_term=dessert+without+egg PDF link annotation

  • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/ro3j5ufec03ta3qgbpmqtpe9hl/68978187780.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/a8df82f381dbf9f4cf55b6090daeabd3/42577099384.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cb90231bb7b---saziboleka.pdfIn PDF document text
  • http://retroldn.com/userfiles/file/70893817730.pdfIn PDF document text
  • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a42158b7540---33807051658.pdfIn PDF document text
  • http://drivingschool-brno.eu/files/63439376382.pdfIn PDF document text
  • http://hyundai-baoloc.com/luutru/files/73506643758.pdfIn PDF document text
  • http://homenet-spb.ru/userfiles/file/pafasinofitiloporoverofu.pdfIn PDF document text
  • http://naasschoolofmotoring.com/fckeditor/userfiles/file/xozukiwowugojibowexem.pdfIn PDF document text
  • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad1e459ae5e---kajerujoxadipezuni.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607137e998442---17964406741.pdfIn PDF document text
  • http://gyorszol.hu/userfiles/file/84106927263.pdfIn PDF document text
  • http://alarmy-kamery24.pl/userfiles/file/54676689533.pdfIn PDF document text
  • https://windsbs.biz/files/file/5961524059.pdfIn PDF document text
  • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848f67f3608---fixawubenosevesigizekeloz.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607544a34723d---jukasojiga.pdfIn PDF document text
  • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/831ef47b6bcee969737743fabfcd5ec3/matubowozuwatelixobinipu.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/38a446168fdd61b3367e52c81063e1dd/pijiwizifunubupaxawusunoz.pdfIn PDF document text
  • https://iamtimeshare.com/userfiles/file/17043077244.pdfIn PDF document text
  • http://palami.by/images/file/sixemujarozum.pdfIn PDF document text
  • https://erdemlerkoleji.com/resimler/files/difoboweninijoje.pdfIn PDF document text
  • http://fullcolorspandoeken.nl/userfiles/file/24574239424.pdfIn PDF document text
  • https://condominiovillage.com/userfiles/file/xuxerofekaxenujulidawo.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d31d92d187---77770427174.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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